北京某富水砂层联络通道冻结法设计施工研究

作者:郭建涛 孙立柱 油新华
单位:中国建筑股份有限公司技术中心 北京市市政工程设计研究总院有限公司
摘要:以北京地铁7号线东延工程万盛南街西口站—云景东路站区间1号联络通道为工程依托,针对国内地铁建设中盾构法区间联络通道施工时,因破除管片、地下水等导致联络通道施工风险大的问题,对1号联络通道采用冻结法的施工方案进行了研究。通过数值模拟及经典结构力学法分别进行设计计算,最终确定合理的冻结法设计方案及相应的设计参数。
关键词:富水砂层联络通道冻结法设计计算数值模拟
作者简介:郭建涛,硕士,工程技术研究中心副总经理,E-mail:272996205@qq.com。
基金: -页码-:73-75,94
尊敬的用户,本篇文章需要20元,点击支付交费后阅读
参考文献[1] 朱俊涛,孙盼盼,刘媛莹,等.富水粉砂地层杯形水平冻结法端头加固技术[J].施工技术,2020,49(10):95-98.
[2] 马俊,杨平,刘增光,等.常州砂性地层联络通道解冻规律研究[J].地下空间与工程学报,2019,15(1):167-173,180.
[3] 刁鹏程,杨平.液氮冻结二次加固在富水软弱地层小盾构接收中的应用与实测[J].隧道建设(中英文),2018,38(6):1044-1051.
[4] 王晨星,刘远才,刘德稳.基于土体冻结理论在地铁施工中的应用[J].森林工程,2018,34(2):89-94,99.
[5] 丁智,洪其浩,魏新江,等.地铁列车荷载下人工冻融软土微观试验研究[J].浙江大学学报(工学版),2017,51 (7):1291-1299.
[6] 杨平,陈瑾,张尚贵,等.软弱地层联络通道冻结法施工温度及位移场全程实测研究[J].岩土工程学报,2017,39(12):2226-2234.
[7] 樊文虎,杨平,蒋大有,等.全断面注浆管棚矩形冻结加固技术与实测分析[J].地下空间与工程学报,2017,13 (2):551-558.
[8] 胡俊,杨平.大直径杯型冻土壁温度场数值分析[J].岩土力学,2015,36(2):523-531.
[9] 覃伟,杨平,金明,等.地铁超长联络通道人工冻结法应用与实测研究[J].地下空间与工程学报,2010,6(5):1065-1071.
Research on Design and Construction of Freezing Method for Connecting Passage in Water-rich Sand Stratum in Beijing
GUO Jiantao SUN Lizhu YOU Xinhua
(China State Construction Technical Center Beijing General Municipal Engineering Design & Research Institute Co.,Ltd.)
Abstract: Taking the connecting passage between Wansheng South Street West Exit Station and Yunjing East Road Station of Beijing Metro Line 7 as the engineering support background. Aiming at the problem of high risk in the construction of the connecting passage due to the removal of segments and groundwater during the construction of the shield tunnel connecting passage in the domestic subway construction,the construction plan of the No. 1 connecting passage of this project using the freezing method is studied.Through numerical simulation and classical structural mechanics method respectively, the design calculation is carried out,and finally a reasonable freezing method design scheme and corresponding design parameters are determined.
Keywords: water-rich sand; connected channel; freezing; design calculation; simulation
942 0 0
文字:     A-     A+     默认 取消